NI3AL INTERMETALLIDE-BASED HEAT-RESISTANT ALLOY AND ARTICLES MADE THEREOF

摘要

FIELD: metallurgy.;SUBSTANCE: based on intermetallic Ni3Al contains, by weight: aluminium 8.2-8.8, chromium 4.5-5.5, tungsten 4.1-4.6, molybdenum 4.5-5.5, titanium 0.8-1.2, carbon 0.12-0.18, cobalt 3.5-4.5, at least one rare earth metal selected from the group consisting of lanthanum, scandium and yttrium 0.015-0.3, nickel is the rest.;EFFECT: alloy is characterized by operating temperature up to 1250 degrees, increased values of heat-resistance, and thermal resistance.;3 cl, 2 tbl, 3 ex